This Litens pulley is manufactured by one of the largest original equipment pulley suppliers to ensure proper fit and performance. This pulley is produced for serpentine belt routing applications and is made of high strength steel for improved life and durability. This pulley conforms to original equipment material, tolerances, and specifications. This part fits 2010-2014 Mazda 3,5 with 2.0/2.3/2.5L (Idler Pulley - Grooved with bracket). This part comes with an aluminum bracket, installation bolt and dust shield. Litens is the world's largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.